• Prepare Blueberry simple syrup: Combine sugar, water, strawberries and frozen blueberries to a small medium saucepan, bring to a boil, reduce and let cook for 10 minutes. As it cooks, mash the blueberries with a fork or spoon to break down.

• Once cooked, add contents to a blender (or use a handheld blender) and puree until smooth. Add to a container and let cool for a few hours or until ready to serve.

• Prepare cocktail: Add a few mint leaves and 1 shot of rum to a tall glass with ice. Add 1 ½ shots of the blueberry simple syrup. Top with the sparkling water and serve immediately.

• Tip: garnish with cucumber and mint or extra blueberries, if desired.